CN112873943A - Rolling mechanism - Google Patents
Rolling mechanism Download PDFInfo
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- CN112873943A CN112873943A CN202110031605.7A CN202110031605A CN112873943A CN 112873943 A CN112873943 A CN 112873943A CN 202110031605 A CN202110031605 A CN 202110031605A CN 112873943 A CN112873943 A CN 112873943A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B3/00—Presses characterised by the use of rotary pressing members, e.g. rollers, rings, discs
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/04—Processes of manufacture in general
- H01M4/043—Processes of manufacture in general involving compressing or compaction
- H01M4/0435—Rolling or calendering
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/06—Electrodes for primary cells
- H01M4/08—Processes of manufacture
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Battery Electrode And Active Subsutance (AREA)
- Press Drives And Press Lines (AREA)
Abstract
The embodiment of the invention provides a rolling mechanism, and relates to the field of rolling processes. The roll pressing mechanism comprises a first press roll assembly, a second press roll assembly, a first auxiliary pressing assembly and a second auxiliary pressing assembly, the first press roll assembly and the second press roll assembly are arranged at intervals, a gap for accommodating a pole piece is formed between the first press roll assembly and the second press roll assembly, the first auxiliary pressing assembly is arranged on one side, away from the second press roll assembly, of the first press roll assembly, and the second auxiliary pressing assembly is arranged on one side, away from the first press roll assembly, of the second press roll assembly; the first auxiliary pressing component is abutted against the first pressing roll component, and the second auxiliary pressing component is abutted against the second pressing roll component. In the embodiment of the invention, in the process of rolling the pole piece, the first auxiliary pressing assembly and the second auxiliary pressing assembly can resist the reaction force of the pole piece, so that the first pressing roller assembly and the second pressing roller assembly are not deformed as much as possible in the process of rolling the pole piece, and the uniformity of the pole piece is ensured.
Description
Technical Field
The invention relates to the field of rolling processes, in particular to a rolling mechanism.
Background
The rolling mechanism is mainly used for rolling the pole piece, compacting the coating material on the pole piece, reducing the volume of the pole piece so as to improve the energy density of the battery, simultaneously enabling the contact of the active substance and the conductive agent particles to be tighter, improving the electronic conductivity and increasing the bonding strength of the coating material and the current collector. When the pole piece is rolled, the rolling mechanism usually applies pressure to two ends of the rolling roller, and the middle part of the rolling roller rolls the pole piece, so that the part of the rolling roller, which rolls the pole piece, is easy to deform, and the thickness of the pole piece which is rolled by the rolling roller is uneven.
Disclosure of Invention
The invention aims to provide a rolling mechanism which can not deform as much as possible in the process of rolling a pole piece so as to ensure the uniformity of the thickness of the pole piece.
Embodiments of the invention may be implemented as follows:
the embodiment of the invention provides a rolling mechanism for rolling pole pieces, which comprises: the pole piece pressing device comprises a first pressing roll assembly, a second pressing roll assembly, a first auxiliary pressing assembly and a second auxiliary pressing assembly, wherein the first pressing roll assembly and the second pressing roll assembly are arranged at intervals, a gap for accommodating the pole piece is formed between the first pressing roll assembly and the second pressing roll assembly, the first auxiliary pressing assembly is arranged on one side, away from the second pressing roll assembly, of the first pressing roll assembly, and the second auxiliary pressing assembly is arranged on one side, away from the first pressing roll assembly, of the second pressing roll assembly; the first auxiliary pressing component is abutted against the first pressing roll component, and the second auxiliary pressing component is abutted against the second pressing roll component.
In an optional embodiment of the present invention, the first pressure roller assembly includes a first pressure roller, a first bracket, and a plurality of first driving members, the plurality of first driving members are mounted on the first bracket, the plurality of first driving members are respectively connected to two ends of the first pressure roller in a transmission manner, the first auxiliary pressure assembly abuts against the first pressure roller, and the first driving members drive the first pressure roller to move in a direction close to the second pressure roller assembly.
In an optional embodiment of the present invention, the first pressing roller includes a first rolling section and two first connecting sections, the two first connecting sections are disposed at two ends of the first rolling section, the first connecting section is in driving connection with the first driving member, and the first auxiliary pressing assembly abuts against the first rolling section.
In an optional embodiment of the present invention, the first auxiliary pressing assembly includes a first mounting part and a plurality of first pressing wheels, the first mounting part is connected to the first bracket, the plurality of first pressing wheels are sequentially mounted on the first mounting part, and the first pressing wheels abut against the first pressing rollers.
In an optional embodiment of the invention, the first pressing wheel is of a hollow structure, and the abutting force between the first pressing wheel and the first pressing roller can be adjusted by hydraulic oil or air in the first pressing wheel.
In an optional embodiment of the present invention, the second pressure roller assembly includes a second pressure roller, a second bracket, and a plurality of second driving members, the plurality of second driving members are mounted on the second bracket, the plurality of second driving members are respectively connected to two ends of the second pressure roller in a transmission manner, the second auxiliary pressure assembly abuts against the second pressure roller, and the second driving members drive the second pressure roller to move in a direction close to the first pressure roller assembly.
In an optional embodiment of the present invention, the second pressing roller includes a second pressing section and two second connecting sections, the two second connecting sections are disposed at two ends of the second pressing section, the connecting sections are in driving connection with the second driving member, and the second auxiliary pressing assembly abuts against the second pressing section.
In an optional embodiment of the present invention, the second auxiliary pressing assembly includes a second mounting part and a plurality of second pressing wheels, the second mounting part is connected to the second support, the plurality of second pressing wheels are sequentially mounted on the second mounting part, and the second pressing wheels abut against the second pressing rollers.
In an optional embodiment of the invention, the second pressing wheel is of a hollow structure, and the abutting force between the second pressing wheel and the second pressing roller can be adjusted by hydraulic oil or air in the second pressing wheel.
In an alternative embodiment of the present invention, the first auxiliary pressing member is disposed opposite to the second auxiliary pressing member.
The embodiment of the invention has the following beneficial effects: the roll pressing mechanism comprises a first press roll assembly, a second press roll assembly, a first auxiliary pressing assembly and a second auxiliary pressing assembly, the first press roll assembly and the second press roll assembly are arranged at intervals, a gap for accommodating a pole piece is formed between the first press roll assembly and the second press roll assembly, the first auxiliary pressing assembly is arranged on one side, away from the second press roll assembly, of the first press roll assembly, and the second auxiliary pressing assembly is arranged on one side, away from the first press roll assembly, of the second press roll assembly; the first auxiliary pressing component is abutted against the first pressing roll component, and the second auxiliary pressing component is abutted against the second pressing roll component.
In the embodiment of the invention, the first auxiliary pressing assembly is arranged on one side of the first pressing roller assembly, which is far away from the second pressing roller assembly, and the first auxiliary pressing assembly is abutted against the first pressing roller assembly in the process of rolling the pole piece by the first pressing roller assembly and the second pressing roller assembly, so that the reaction force of the pole piece in the process of rolling the pole piece by the first pressing roller assembly can be resisted, and the first pressing roller assembly is enabled not to deform as much as possible when rolling the pole piece. Similarly, the second auxiliary pressing assembly is arranged on one side, far away from the first pressing roller assembly, of the second pressing roller assembly, and in the process that the pole pieces are rolled by the first pressing roller assembly and the second pressing roller assembly, the second auxiliary pressing assembly is abutted against the first pressing roller assembly to resist the reaction force of the pole pieces in the process that the pole pieces are rolled by the second pressing roller assembly, so that the first pressing roller assembly is not deformed as far as possible when the pole pieces are rolled by the first pressing roller assembly. In the embodiment of the invention, in the process of rolling the pole piece, the first auxiliary pressing assembly and the second auxiliary pressing assembly can resist the reaction force of the pole piece, so that the first pressing roller assembly and the second pressing roller assembly are not deformed as much as possible in the process of rolling the pole piece, and the uniformity of the pole piece is ensured.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic structural diagram of a rolling mechanism according to an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a connection between a first auxiliary pressing component of a pressing mechanism and a first support of a first pressing roller component according to an embodiment of the present invention.
Fig. 3 is a schematic structural diagram of a connection between a second auxiliary pressing component of the pressing mechanism and a second support of the second pressing roller component according to the embodiment of the present invention.
Icon: 100-a rolling mechanism; 110-a first press roll assembly; 112-a first press roll; 1121-first roll section; 1123 — a first connecting section; 114-a first support; 116-a first drive member; 120-a second roller assembly; 122-a second pressure roller; 1221-a second rolling section; 1223-a second connection segment; 124-a second bracket; 126-a second drive member; 130-a first secondary compression assembly; 132-a first mount; 1321 — first installation shaft; 1323-a first seat; 134-a first puck; 140-a second secondary pressure assembly; 142-a second mount; 1421 — second mounting shaft; 1423 — second support; 144-second pinch roller.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. indicate an orientation or a positional relationship based on that shown in the drawings or that the product of the present invention is used as it is, this is only for convenience of description and simplification of the description, and it does not indicate or imply that the device or the element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.
Furthermore, the appearances of the terms "first," "second," and the like, if any, are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
It should be noted that the features of the embodiments of the present invention may be combined with each other without conflict.
Examples
Referring to fig. 1, the present embodiment provides a rolling mechanism 100, and the rolling mechanism 100 provided in the present embodiment can not deform as much as possible during the process of rolling the pole piece, so as to ensure the uniformity of the thickness of the pole piece.
The rolling mechanism 100 mainly rolls the pole piece, compacts the coating material on the pole piece, reduces the volume of the pole piece to improve the energy density of the battery, simultaneously makes the contact between the active substance and the conductive agent particles more tight, improves the electronic conductivity, and can increase the bonding strength between the coating material and the current collector. When the rolling mechanism 100 rolls the pole piece, pressure is usually applied to both ends of the roll, and the middle part of the roll rolls the pole piece, which easily deforms the part of the roll that rolls the pole piece, so that the thickness of the pole piece that is rolled by the roll is not uniform.
In the prior art, in order to solve the problem, the diameter of the compression roller is increased in one mode, so that the deformation resistance of the compression roller is improved, however, the diameter of the compression roller cannot be increased without limit, the maximum diameter of the compression roller in the industry can only be 900mm at present, and the difficulty of processing and post-maintenance can be increased by continuously increasing the diameter, so that the pole piece with the width smaller than 400mm can only be rolled in the mode.
The other mode is that bent steel is additionally arranged at two ends of a pressing roller, the rolling money pressing roller generates pre-bending under the pre-tensioning force of the bent steel, and the rolled part is straightened under the reaction force of the pole piece when the pole piece is rolled. This way is then implemented, since the bent steel is also arranged at both ends of the press roll, the roll pressure on the pole pieces is not uniform.
In addition, the pressing roller is made into an arc shape, and the rolling position is straightened under the reaction of the pole piece during rolling, but the mode only can be suitable for a single product, is poor in compatibility, needs to customize the arc shape of the surface of the pressing roller according to the width and the compaction density specification of the pole piece, and cannot be used for mass production.
Therefore, the situation that the pole pieces are not uneven in the rolling process or the problem of pole piece uniformity cannot be solved, and the universality of the rolling mechanism 100 cannot be solved in the prior art.
In the present embodiment, the rolling mechanism 100 includes: the first compression roller assembly 110 and the second compression roller assembly 120 are arranged at intervals, a gap for accommodating a pole piece is formed between the first compression roller assembly 110 and the second compression roller assembly 120, the first compression roller assembly 130 is arranged on one side, away from the second compression roller assembly 120, of the first compression roller assembly 110, and the second compression roller assembly 140 is arranged on one side, away from the first compression roller assembly 110, of the second compression roller assembly 120; the first auxiliary pressing member 130 abuts against the first pressing roller 110, and the second auxiliary pressing member 140 abuts against the second pressing roller 120.
In this embodiment, the first auxiliary pressing assembly 130 is disposed on a side of the first pressing roller assembly 110 away from the second pressing roller assembly 120, and in the process of rolling the pole piece by the first pressing roller assembly 110 and the second pressing roller assembly 120, the first auxiliary pressing assembly 130 abuts against the first pressing roller assembly 110, so as to resist a reaction force of the pole piece in the process of rolling the pole piece by the first pressing roller assembly 110, so that the first pressing roller assembly 110 is not deformed as much as possible when rolling the pole piece. Similarly, the second auxiliary pressing assembly 140 is disposed on a side of the second pressing roller assembly 120 away from the first pressing roller assembly 110, and in the process of rolling the pole piece by the first pressing roller assembly 110 and the second pressing roller assembly 120, the second auxiliary pressing assembly 140 abuts against the first pressing roller assembly 110 to counter a reaction force of the pole piece by the second pressing roller assembly 120 in the process of rolling the pole piece, so that the first pressing roller assembly 110 is not deformed as much as possible when rolling the pole piece. In this embodiment, in the process of rolling the pole piece, the first auxiliary pressing assembly 130 and the second auxiliary pressing assembly 140 can resist the reaction force of the pole piece, so that the first pressing roller assembly 110 and the second pressing roller assembly 120 do not deform as much as possible in the process of rolling the pole piece, thereby ensuring the uniformity of the thickness of the pole piece.
In this embodiment, the first platen assembly 110 includes a first platen 112, a first bracket 114 and a plurality of first driving members 116, the plurality of first driving members 116 are mounted on the first bracket 114, the plurality of first driving members 116 are respectively connected to two ends of the first platen 112 in a transmission manner, the first auxiliary platen assembly 130 abuts against the first platen 112, and the first driving members 116 drive the first platen 112 to move in a direction close to the second platen assembly 120.
In the present embodiment, the force applied by the first driving element 116 on the first pressing roller 112 can be controlled according to the thickness and material of the finished pole piece, the thinner the finished pole piece, the greater the applied roller pressure, and the thicker the finished pole piece, the smaller the applied roller pressure.
In this embodiment, the number of the first driving parts 116 is two, the two first driving parts 116 are respectively disposed at two ends of the first pressing roller 112, and thus the two ends of the first pressing roller 112 apply roller pressure to the first pressing roller 112 to roll the pole pieces, so that uniformity of force application during rolling of the pole pieces can be improved, and uneven thickness of the pole pieces which are rolled out due to the fact that the roller pressure at one end is greater than that at the other end in the process of rolling the pole pieces is avoided.
In this embodiment, the first pressing roller 112 includes a first rolling segment 1121 and two first connecting segments 1123, the two first connecting segments 1123 are disposed at two ends of the first rolling segment 1121, the first connecting segments 1123 are in driving connection with the first driving element 116, and the first auxiliary pressing assembly 130 abuts against the first rolling segment 1121.
In this embodiment, the first rolling section 1121 rolls the pole piece, when the two first driving members 116 respectively apply roller pressure to the two first connection sections 1123, the first rolling section 1121 is easily deformed under the reaction force of the pole piece, and the first auxiliary pressing assembly 130 abuts against the first rolling section 1121 at a side of the first rolling section 1121 away from the second rolling assembly, so as to resist the reaction force of the pole piece, so that the first rolling section 1121 is kept as non-deformed as much as possible, thereby ensuring the uniformity of the thickness of the pole piece, and avoiding the occurrence of the condition of uneven thickness as much as possible.
Referring to fig. 2, in the present embodiment, the first auxiliary pressing assembly 130 includes a first mounting member 132 and a plurality of first pressing wheels 134, the first mounting member 132 is connected to the first bracket 114, the plurality of first pressing wheels 134 are sequentially mounted on the first mounting member 132, and the first pressing wheels 134 are abutted against the first pressing roller 112.
In this embodiment, the plurality of first pressing wheels 134 are uniformly installed on the first installation component 132, and sequentially abut against the first rolling sections 1121 along the extending direction of the first rolling sections 1121, and the plurality of first pressing wheels 134 abut against the first rolling sections 1121, so that the first rolling sections 1121 are uniformly stressed, and it is ensured that the first rolling sections 1121 are not deformed in the process of rolling the pole piece.
In this embodiment, the first mounting member 132 includes a first mounting shaft 1321 and a plurality of first supports 1323, one end of the first support 1323 is connected to the first bracket 114, the other end of the first support 1323 is connected to the first mounting shaft 1321, the plurality of first supports 1323 are arranged at intervals, the plurality of first pressing wheels 134 are sequentially mounted on the first mounting shaft 1321, and one first pressing wheel 134 is arranged between two adjacent first supports 1323.
In this embodiment, the first pressing wheel 134 is a hollow structure, and the pressing force between the first pressing wheel 134 and the first pressing roller 112 can be adjusted by hydraulic oil or air in the first pressing wheel 134.
In the process of rolling the pole piece, the abutting force of the first pressing wheel 134 on the first rolling section 1121 is adjusted according to the reaction force of the pole piece, and when the reaction force of the pole piece is large, more hydraulic oil or gas can be filled into the first pressing wheel 134, so that the abutting force of the first pressing wheel 134 on the first rolling section 1121 is increased. Similarly, when the reaction force of the pole pieces is small, less hydraulic oil or gas is filled into the first pressure roller 134, and the first pressure roller 134 has less abutting force against the first rolling section 1121.
Referring to fig. 1, in the present embodiment, the second platen assembly 120 includes a second platen 122, a second bracket 124 and a plurality of second driving members 126, the plurality of second driving members 126 are mounted on the second bracket 124, the plurality of second driving members 126 are respectively in transmission connection with two ends of the second platen 122, the second auxiliary platen assembly 140 abuts against the second platen 122, and the second driving members 126 drive the second platen 122 to move in a direction close to the first platen assembly 110.
In this embodiment, the number of the second driving members 126 is two, the two second driving members 126 are respectively disposed at two ends of the second pressing roller 122, and thus roller pressure is applied to the second pressing roller 122 from two ends of the second pressing roller 122 to roll the pole pieces, so that uniformity of force application during rolling of the pole pieces can be improved, and uneven thickness of the pole pieces which are rolled out due to the fact that the roller pressure at one end is greater than that at the other end in the pole piece rolling process is avoided.
In the present embodiment, the force applied by the second driving unit 126 on the second pressing roller 122 can be controlled according to the thickness and material of the finished pole piece, the thinner the finished pole piece, the greater the applied roller pressure, and the thicker the finished pole piece, the smaller the applied roller pressure.
In this embodiment, the second pressing roller 122 includes a second pressing section 1221 and two second connecting sections 1223, the two second connecting sections 1223 are disposed at two ends of the second pressing section 1221, the connecting sections are drivingly connected to the second driving member 126, and the second auxiliary pressing assembly 140 abuts against the second pressing section 1221.
In this embodiment, the second rolling section 1221 rolls the pole piece, when two second driving members 126 apply roller pressure to two second connecting sections 1223 respectively, under the reaction force of the pole piece, the second rolling section 1221 is easy to deform, the second auxiliary pressing assembly 140 abuts against the second rolling section 1221 at one side of the second rolling section 1221 away from the first rolling assembly, the reaction force of the pole piece can be resisted, the second rolling section 1221 is kept as non-deformable as much as possible, thereby ensuring the uniformity of the thickness of the pole piece, and avoiding the situation of uneven thickness as much as possible.
Referring to fig. 3, in the present embodiment, the second auxiliary pressing assembly 140 includes a second mounting member 142 and a plurality of second pressing rollers 144, the second mounting member 142 is connected to the second bracket 124, the plurality of second pressing rollers 144 are sequentially mounted on the second mounting member 142, and the second pressing rollers 144 abut against the second pressing roller 122.
In this embodiment, the second pressing wheels 144 are uniformly installed on the second installation part 142, and sequentially abut against the second rolling section 1221 along the extending direction of the second rolling section 1221, and the second rolling section 1221 is pressed uniformly by abutting against the second pressing wheels 144, so that the second rolling section 1221 is not deformed in the process of rolling the pole piece.
In this embodiment, the second mounting member 142 includes a second mounting shaft 1421 and a plurality of second supports 1423, one end of each second support 1423 is connected to the second bracket 124, the other end of each second support 1423 is connected to the second mounting shaft 1421, the plurality of second supports 1423 are arranged at intervals, a plurality of second pressing wheels 144 are sequentially mounted on the second mounting shaft 1421, and one second pressing wheel 144 is arranged between two adjacent second supports 1423.
In this embodiment, the second pressing wheel 144 has a hollow structure, and the pressing force between the second pressing wheel 144 and the second pressing roller 122 can be adjusted by hydraulic oil or air in the second pressing wheel 144.
In the process of rolling the pole piece, the abutting force of the second pressing wheel 144 on the second rolling section 1221 is adjusted according to the reaction force of the pole piece, and when the reaction force of the pole piece is larger, more hydraulic oil or gas can be filled into the second pressing wheel 144, so that the abutting force of the second pressing wheel 144 on the second rolling section 1221 is increased. Similarly, when the reaction force of the pole piece is small, less hydraulic oil or less gas is filled into the second pressure roller 144, and the second pressure roller 144 has less abutting force on the second rolling section 1221.
In the present embodiment, the first auxiliary pressing member 130 is disposed opposite to the second auxiliary pressing member 140.
In summary, in the roll pressing mechanism 100 provided in this embodiment, the first auxiliary pressing assembly 130 is disposed on a side of the first roll assembly 110 away from the second roll assembly 120, and in the process of rolling the pole piece by the first roll assembly 110 and the second roll assembly 120, the first auxiliary pressing assembly 130 abuts against the first roll assembly 110, so as to resist a reaction force of the first roll assembly 110 on the pole piece during the process of rolling the pole piece, so that the first roll assembly 110 is not deformed as much as possible when rolling the pole piece. Similarly, the second auxiliary pressing assembly 140 is disposed on a side of the second pressing roller assembly 120 away from the first pressing roller assembly 110, and in the process of rolling the pole piece by the first pressing roller assembly 110 and the second pressing roller assembly 120, the second auxiliary pressing assembly 140 abuts against the first pressing roller assembly 110 to counter a reaction force of the pole piece by the second pressing roller assembly 120 in the process of rolling the pole piece, so that the first pressing roller assembly 110 is not deformed as much as possible when rolling the pole piece. In this embodiment, in the process of rolling the pole piece, the first auxiliary pressing assembly 130 and the second auxiliary pressing assembly 140 can resist the reaction force of the pole piece, so that the first pressing roller assembly 110 and the second pressing roller assembly 120 do not deform as much as possible in the process of rolling the pole piece, thereby ensuring the uniformity of the pole piece.
The above description is only for the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (10)
1. A rolling mechanism for rolling pole pieces, the rolling mechanism comprising: the pole piece pressing device comprises a first pressing roll assembly, a second pressing roll assembly, a first auxiliary pressing assembly and a second auxiliary pressing assembly, wherein the first pressing roll assembly and the second pressing roll assembly are arranged at intervals, a gap for accommodating the pole piece is formed between the first pressing roll assembly and the second pressing roll assembly, the first auxiliary pressing assembly is arranged on one side, away from the second pressing roll assembly, of the first pressing roll assembly, and the second auxiliary pressing assembly is arranged on one side, away from the first pressing roll assembly, of the second pressing roll assembly; the first auxiliary pressing component is abutted against the first pressing roll component, and the second auxiliary pressing component is abutted against the second pressing roll component.
2. The roller pressing mechanism according to claim 1, wherein the first roller assembly comprises a first roller, a first bracket and a plurality of first driving members, the plurality of first driving members are mounted on the first bracket, the plurality of first driving members are respectively in transmission connection with two ends of the first roller, the first auxiliary pressing assembly abuts against the first roller, and the first driving members drive the first roller to move in a direction close to the second roller assembly.
3. The roller pressing mechanism according to claim 2, wherein the first pressing roller comprises a first roller section and two first connecting sections, the two first connecting sections are arranged at two ends of the first roller section, the first connecting sections are in driving connection with the first driving member, and the first auxiliary pressing assembly abuts against the first roller section.
4. The rolling mechanism according to claim 2, wherein the first auxiliary pressing assembly comprises a first mounting part and a plurality of first pressing wheels, the first mounting part is connected with the first support, the first pressing wheels are sequentially mounted on the first mounting part, and the first pressing wheels are abutted against the first pressing rollers.
5. The rolling mechanism according to claim 4, wherein the first pressing wheel is of a hollow structure, and the abutting force between the first pressing wheel and the first pressing roller can be adjusted by hydraulic oil or air in the first pressing wheel.
6. The roller pressing mechanism according to claim 1, wherein the second roller assembly comprises a second roller, a second bracket and a plurality of second driving members, the plurality of second driving members are mounted on the second bracket, the plurality of second driving members are respectively in transmission connection with two ends of the second roller, the second auxiliary pressing assembly abuts against the second roller, and the second driving members drive the second roller to move in a direction close to the first roller assembly.
7. The rolling mechanism according to claim 6, wherein the second rolling roller comprises a second rolling section and two second connecting sections, the two second connecting sections are arranged at two ends of the second rolling section, the connecting sections are in driving connection with the second driving member, and the second auxiliary pressing assembly abuts against the second rolling section.
8. The rolling mechanism according to claim 6, wherein the second auxiliary pressing assembly comprises a second mounting part and a plurality of second pressing wheels, the second mounting part is connected with the second bracket, the plurality of second pressing wheels are sequentially mounted on the second mounting part, and the second pressing wheels are abutted against the second pressing rollers.
9. The rolling mechanism according to claim 8, wherein the second pressing wheel is of a hollow structure, and the second pressing wheel can adjust the abutting force between the second pressing wheel and the second pressing roller through hydraulic oil or air.
10. The roller pressing mechanism according to claim 1, wherein the first auxiliary pressing member is disposed opposite to the second auxiliary pressing member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110031605.7A CN112873943B (en) | 2021-01-11 | 2021-01-11 | Rolling mechanism |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110031605.7A CN112873943B (en) | 2021-01-11 | 2021-01-11 | Rolling mechanism |
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| CN112873943A true CN112873943A (en) | 2021-06-01 |
| CN112873943B CN112873943B (en) | 2023-07-11 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114442680A (en) * | 2022-04-07 | 2022-05-06 | 东莞海裕百特智能装备有限公司 | Lithium battery pole piece thickness control method and system and readable storage medium |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN210586367U (en) * | 2019-08-22 | 2020-05-22 | 佛山市金银河智能装备股份有限公司 | Multistage tandem rolling four-roller rolling device |
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| CN114442680A (en) * | 2022-04-07 | 2022-05-06 | 东莞海裕百特智能装备有限公司 | Lithium battery pole piece thickness control method and system and readable storage medium |
| CN114442680B (en) * | 2022-04-07 | 2022-06-10 | 东莞海裕百特智能装备有限公司 | Lithium battery pole piece thickness control method and system and readable storage medium |
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|---|---|
| CN112873943B (en) | 2023-07-11 |
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